{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["used for", "conjunction"], "input": "To overcome the singularity problem of the least squares estimate -LRB- LSE -RRB- method , an approximate least squares estimate -LRB- ALSE -RRB- method is proposed to estimate the parameters of the ACGMRF model ."}
{"used for": [{"subject": "approximate least squares estimate -LRB- ALSE -RRB- method", "object": "parameters of the ACGMRF model"}], "conjunction": []}